Title :
Experimental study of ultrasonic wave propagation for austenitic and dissimilar welds
Author :
Kohler, Benjamin ; Barth, Matthew ; Schubert, Falk
Author_Institution :
Fraunhofer IZFP-Dresden, Dresden, Germany
Abstract :
Ultrasonic wave propagation in a bimetallic weld is visualized by Laser Doppler Vibrometry. An advanced averaging procedure helps to get high resolution data sets. The visualization helps to understand wave propagation effects in such complicated inhomogeneous anisotropic materials. We demonstrate, that also grain structure images can be obtained out of the same data set by a method called Grazing Incidence Ultrasound Microscopy (GIUM).
Keywords :
Doppler measurement; acoustic microscopy; anisotropic media; bimetals; crystal microstructure; ultrasonic propagation; vibration measurement; welds; GIUM; advanced averaging procedure; austenitic welds; bimetallic weld; dissimilar welds; grain structure images; grazing incidence ultrasound microscopy; inhomogeneous anisotropic materials; laser Doppler vibrometry; ultrasonic wave propagation; wave propagation effects; Acoustics; Data visualization; Materials; Measurement by laser beam; Propagation; Ultrasonic variables measurement; Welding; Grazing incidence; Microstructure; Near field method; Ultrasound;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0064
